Rao, Madan ; Chakrabarti, Amitabha (1994) Anisotropy-induced crossover in domain growth kinetics Physical Review Letters, 72 (18). pp. 2911-2914. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v72/i18/p2911_1
Related URL: http://dx.doi.org/10.1103/PhysRevLett.72.2911
Abstract
We study the growth of order following a zero temperature quench in a conserved two-dimensional isotropic model, in the presence of a weak single-ion anisotropy D>0, and explicitly demonstrate the presence of crossover phenomena in domain growth kinetics. At early times the dynamical exponent and the correlation function are governed by the isotropic zero-temperature fixed point. Beyond a crossover time tc(D), the dynamics is controlled by the Ising zero-temperature fixed point. Thus D is relevant at the isotropic zero-temperature fixed point. Using a renormalization group analysis around the isotropic zero-temperature fixed point we determine the value of the crossover exponent Φ.
Item Type: | Article |
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Source: | Copyright of this article belongs to The American Physical Society. |
ID Code: | 67286 |
Deposited On: | 29 Oct 2011 11:50 |
Last Modified: | 29 Oct 2011 11:50 |
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